For the co-worker/networking butterfly in your office, get a mini filing cabinet. At only 6.5" tall, the cabinet can store 600 business cards and help your friend keep their many contacts squared away. It's only $9.99.

The New York coffee cup is an iconic symbol of the city, so get your co-worker the ceramic version. It's perfect as a collector's item for the NYC enthusiast or just the coffee junkie who keeps using up the office's paper cups. It's $15.

There has to be one of them in your office -- the paper collector whose desk is no longer visible because of all their printouts. Help them organize their life with these humorous folders. The rest of the office will be jealous, and it will only cost you $6.99.

If the office prankster is on your gift list, get them this paper paperweight. It will get a few laughs when people think you actually gave someone crumpled paper as a present, and afterwards, it's still functional as a steel paperweight. It will run you $30.

You can't go wrong with a notebook, especially for the colleague who constantly seems to take notes (even during the holiday party). Add a touch of creativity with this Andy Warhol Ideas Pad that even includes vellum inserts featuring Warhol's own quotes and illustrations. The notebook is $18.95.

This is no typical mousepad and works perfectly as the present for the office multitasker. The pad lets you jot down notes using a stylus or just your finger. Simply lift the top sheet and the notes disappear (works well if your colleague has a lot of secrets as well). The mousepad is only $9.99.

If you are constantly tripping over cords on the way to the bathroom because of one particularly plugged-in co-worker, get them this cable monkey for the holidays. It's adorable and will help keep those cables in check. The monkey is only $5.99.

While drinking is generally frowned upon at work, we all know it's fair game after 5 p.m. on Friday. So for those work happy hours, get your colleague a bottle opener that doubles as a nice desk ornament the rest of the week. This bird is $11.50.

Coffee will never go out of style, so get your over-caffeinated co-worker this cozy. Request a different phrase, like their initials, to be embroidered to add a touch of personalization. The leather cozy is only $15.

If one of your co-workers always seems to be itching for the outdoors, get them this air plant to add some nature to their desk. The pod planter is sleek and simple, and the air plant means minimal maintenance for them. It's only $11.

This artsy Doctor Who poster will add flair to any office cubicle. And if they aren't a Doctor Who fan, there are plenty of other options for wall artwork that any colleague would appreciate. Posters run $18.

A boring, impersonal coffee mug is a good way to end that friendship with your office lunch buddy. But a Star Wars themed coffee mug only says clever. You can personalize the mug to say their name (and make sure no one in the office steals it) all for $7.

For that manager of yours who is living in the future, here's a Star Trek collector's item for their office. The door chimes when someone enters their office through motion detection. It's $19.99 and will make going to the boss's office less scary from now on.

The ultimate goofy and useful gift, this toaster shaped USB hub will help keep any wired-up co-worker productive. And the mini toast USB drives are simply hysterical. Since the toaster, and each piece of toast is sold separately, it could work well as a group idea when everyone is chipping in for the boss's present. Cost is $24.99 to $27.99.

Image courtesy of ThinkGeek.

The annual office holiday party season is among us, bringing with it the dreaded office gift exchange. Gifts for co-workers are some of the most difficult and hair-pulling to plan since you must to balance the wire-thin line between too personal and too generic.

There are plenty of rules to follow when it comes to office gift-giving. Since you might not know everyone's religious affiliation, it's better to stick to seasonal or un-holiday related gifts as opposed to accidentally getting a "Merry Christmas" sweater for your Jewish cubicle-mate. And try to learn a little something about them before splurging on their gift. For instance, even though a personalized coffee mug works well as a holiday present, if they don't drink coffee, you won't come out looking too great.

It's also important to keep presents at work lighthearted and whimsical, but stay within the NSFW bounds (pajamas come to mind). And though everyone loves chocolate, it's probably not the most memorable choice for a gift.

And the most important thing to remember when it comes to office gift-giving is to not to spend an extravagant amount of money — getting a colleague an MP3 player when they get you a stack of pencils is bound to make the workday awkward for everyone.

The best rule of thumb for office presents is to get your colleague something to use at work since that's where you see them and know them the best. Places like ThinkGeek and the MoMAStore offer lots of creative and innovative desk accessories. And Etsy is a great place to start for unique and personalized items that won't break the bank.

So before you draw names for this year's office Secret Santa, take a look through these 20 gift ideas for some holiday inspiration.

What ideas do you have this year for co-worker gifts? Share them in the comments below.

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